2 Cameras 1 UI

Question

I'm making some software that uses a 3D projector for the display. I have two cameras (left/right), they render the scene as side-by-side images so the projector can split the input video feed and display the left and right images as it needs.

I have a UI in camera space, however I can only link the UI to one camera but I need it linked to two.

In the attached example I have the stereo-camera output from unity (with the adjusted aspect ratio to compensate for the stretc$$anonymous$$ng the projector does). What I'm trying to ac$$anonymous$$eve is a canvas in both cameras (the black buttons) that have the same offset (zero disparity)

I could create two UIs (UI Left, UI Right) and link each one to a camera (Left, Right) and just update them both but that's a lot more work and messy to manage.

If I create the UI in screen space it wont have the correct aspect ratio and will also be split in half by projector.

Any ideas?

Example

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Answer by Glurth · May 27, 2016 at 04:39 PM

ok another idea: though I'm not sure how you get the two camera's to combine into a single stereo output screen, but can you use that same method to output TWO MORE cameras to the same screen? If so, those two camera's can be filtered to show only the UI, and you can adjust their position to NOT stereo-scope the result (by giving them the same world-position).

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oliver9523 · May 28, 2016 at 01:01 PM 0

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Glurth oliver9523 · May 28, 2016 at 02:56 PM 0

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oliver9523 Glurth · Jun 03, 2016 at 09:03 PM 0

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2 Cameras 1 UI

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